Machine for applying corner-staying tabs to box-covering blanks.



LE. CPY

J. D. RBIFSNYDBR & H. G.VSCHWERD'1`LB. MACHINE FOR APPLYING CORNER STAYING TABS To B0X GOVBRING BLANKS.

I APPLICATION FILED AUG. 8, 1912.

Patented Apr. 29, 1913 l0 SHEETS-SHEET 1.

J. D. REIFSNYDER & H. G. SCHWBRDTLB. MACHINE FOR APPLYING CORNER STAYING TABS T0 BOX COVERING BLANKS` .i APPLICATION FILED AUG.8. 1912y 1,0b0,026.

Patented A101129, 1913.

J. D. RBIFSNYDER & H. G. SCHWERDTLE. MACHINE FOR APPLYING CORNER STAYING TABS To BOX GOVBHING BLANKS.

APPLICATION FILED AUG.8, 1912. l

1,060,026.` Patented A191129, 191s;

10 SHEETS-SHEET 3.

J. D. RBIPSNYDER & H. G. SGHWBRDTLE.

MACHINE POR M PLYING CORNER STAYING TABS To BOX COVERING BLANKS. APPLICATION FILED AUG,8,1912.

1 ,060,026 Patented Apr. 29 913 El Mommy J. D. RBIPSNYDER L H. G. SCHWERDTLE. MACHINE PoR APPLUNG'GORNER STAYING TABS To B0X COVERING BLANKS.

APPLIQATION FILED AUG.8,1912. 1,060,026. Patented Apr. 29, 1913.

'10 SHEETS-SHEET 5.

I @Honra L J. D. RBIPSNYDBR @L H. G. SCHWERDTLE. MACHINE PQR APPLYING CORNER STAYING TABS To B0X GOVBRING BLANKS. APPLICATION FILED AUG.8, 1912.

1,060,026. Patented Apr. 29, 1913.

10 SHEETS-SHEET 6.

HOLMM) J. D. REIPSNYDBR L H. G. SCHWERDTLE.

MACHINE FOR APPLYING CORNER STAYING TABS TO BOX GOVERING BLANES. APPLICATION PILE-D AUG. 8, 1912.

1,060,026. Patented M1129, 1913.

10 SHEETS-SHEET 7.

J. D. REIPSNYDER @ny H. G. SCHWERDTLB. MACHINE PoR APPLYING UORNBR STAYING TABS To Box covEmNG BLANKS.

APPLICATION FILED AUG. t5. 1912.

Patented Ap1.29, 1918.

l0 SHEETS^SHEET 8.

C1 Hom,

J. D. REIPSNYDER L H. G. SOHWBRDTLB. MACHINE POR APPIJYING CORNER. STAYING TABS To Box GOVBRING BLANKS. APPLIGATlON FILED AUG. 8, 1912.

1,060,026. f Patented Apr.29,1913.

10 SHEETSSHBET 9.

'2F15 li] y 31a/venten() 'Jamasj e/CJnc/vder anar/Mug J. D. REIPSNYDER & H. G. SCHWBRDTL.

MACHINE FOR APPLYING CORNER STAYING TABS TO BOX GOVERING BLANKS. 1,060,026.

A. APPLICATION FILED AUG.8.1912.

Patented Apr. 29, 1913.

10 SHEETS-SHEET 104 w. f v m W @mi m. M mw i@ ma.

UNITED STATES OFFICE.

JAMES D. REIFSNYDER AND HENRY G. vSCHVVIlL-RDTLLE, OF PHILADELPHIA, PENNSYL- VANIA, ASSIGNORS TO STOKES & SMITH COMPANY, A CORPORATION OF PENNSYL- VARIA.

MACHINE FOR APPLYING` CORNER-STAYIG TABS TO BOX-COVERING BLANKS.

Specification of Letters Patent.

Application tiled August 8, 1912. Serial No. 714,017.

To Il wiwi/i. it 7n' op; concern.

Be itknovvn that we. .Tails-s D. Rini-- sNrnnii and HENRY (lr. Sciiwicnoriin. citizens of the United States. residing at. Philadelphia, iii the State of Pennsylvania. have invented new and useful Improvementsin Machines tor Applying Corner-Staying Tabs to Box-Covering Blanks, of ivhiclithe folloiving is a specification.

This invention relates to a machine for applyingr corner-staying tabs to bok-covering blanks to produce blanks of the kind shown and described iii. the patent to J. Stogdell Stokes, #$45,205. dated February Q6. 1907.

In manufacturing paper or card-board boxes, it has been tlieusual prat-tici` inthe past to first stay cach corner of the box-shell with a staven-ip, this .vork being clone oii a socalled corner-stayin;Y machine and requiring Vtour separate operations, one for each corner of the box, and the stayed or set-up box then has the cover or wrapper applied thereto, this work, in more recent years, being' also carried on by machinery.

It having been proposed, accordingto the disclosure in the above mentioned Stokespatent, to eliminate the separate staying operations, by applying the stay-strips or tabs directly'to the covering blank, so that the boi: would be simultaneously stayed and covered during the operation of applying the covering to tlie box-shell, there vet rcmained theprobleiii of providing a simple and practical machine tor properly applying the stay-tabs to the covering blanks, and it is this object that the present-'invention has in view.

According to our invention ive provide a machine for rapidly and accurately feeding and associating box-covering blanks and staying tabs and applying the latter to the covering-blanks in proper position, so that when the completed blank 'is applied to a box-shell theattached tabs will embrace and coverthe corner-joints o't' the box to securely stay the saine.y thus materiallyl reducing thecost ot manufacturing 4paper boxes.

Briefly and generally stated the machine embodies in the instanceshown, means for Jfeeding the blanks, means for cutting staytabs from a strip of stay-tain material means for altixing the tabs -to the 'face of th blank and means for delivering the stayed blanks to a suitable support.

In the present embodiment of the invention the machine is designed to apply two tabs to the blank at one operation, said means being duplicated and operating siiccessively in order to apply the necessary number of tabs, namely four, dui-ing one complete cycle. and the 'machine is further made .easily and quickly adjustable in order to accommodate blanks of different sizes.

The invention has fora further object to provide a machine ofthe character described vvith an automatic blank sepaiating'and feeding means for automatically separatin troni a pack. the blanks to be tabbed, and feeding the blanks successively to the tabbing mechanism.

The invention has for ya. still further ,object the provision of so-called jogging means adapted to aline and stack the tabbed -blanks in anorderly manner vupon a blankreceiving table. i

.T he invention has for a stilluither obliect the provision of an automatic delivery mechanism for delivering the tabbed blanks from the talibing mechanism to 4a delivery table.' including means for gradually lowering the table with a step-by-step movement as the blanks are.deliveredthereon The invention liasin view, other more orless important objects all of which will Vbe explained and made clear in .the detailed description that follows this general statement.

In order to enable others to understand, make and use the invent-ion we will now proceed to describe. the saine in detail reference being had for this purpose tothe accompanying drawings, wherein,

Figure 1 is a side elevation of a so-called t-abbing machine constructed' in accordance with the present invention. Fig. 2 is a siinilar view on a larger scale, parts of the machine being shown in section. Fig.3 is a vertical section taken through the upper part of the machine and showing the blank feeding means and tab strip severing means. Fig. 4 is a top plan view'oi: the machine.

Patented Apr. 29, 1913.

Fig. 5 is a rear elevation with the stay-strip feeding means removed. Fig. 6 is a sectional view of a portion of the machine showing the stay-strip feeding means. Fig.

views in plan and Section, respectively, "of

the blank-stacking or uidingiingers. Fig. 14 is a detail Section5 view of one of the tab-segments and its disk mounting. Fig, 15 is a detail view partly in sectionA and partly in elevation showin the bearing for the tab-gripper shaft and t e operating oam.

.3W Fig. 16 1s a detail showing the gripper shaft o erat-ing cam. Fig.r 17 is a detail view of t e pawbcontrolling means of the table low-y ering mechanism, Fig. j 18 is a similar view made on alargar. scale and vlookingat u the front of this mechanism; '--i Referring to the drawings the reference numerals l designate the two side members of a machine frame having suitableconnecting cross im` parts of 't e machine are drivenv froma fpulley 2 mounted onl a. power shaft 3` ex- 'tending transversely through the frame members, the said shaft havin -on that c nd opposite thepulleyf-"a gear wllieel 4 which 3s meshes with gears on other shafts carrying -parts of the operating mechanism,- as will Y presently appear.

Themeans for supporting and carrying 'the box-covering blanks that are to receive I4c the stay-tabs, comprises in the instance shown, a rotary drum 5 mounted on a transverse shaft 6 iponf'one end of which is a ar 7 meshin with the ears of the power v4aft 3, see igs. l-i'an 2, whereby said .4s blank carrying and sup orting drum is con- `tinuously.rotated in tie directionof the arrows as'sbown in the various figures. The

said drum 5 carries twov or more' gripper lingers 8,-see` Figs. 3 and 8, which lingers so project through an opening in the drum and overhang an' edge walof said opening, said lingers bein constructed and operating to grip one en of the cet/ering blank in order that-said blank may be held to and carried b'y the drum duringits traveling movement.

TheV well known tumbler mechanism is provided for operating the gripper lingers in order to receive and grip the blanks as they are successively fed to the drum, said mecha- 5o nism also operating to open the lingers and release the blanl` after the stay-tabs have been applied thereto. Coperatively associated with the said blank carrying and support-ing drum is the-,staydab carrying and .65 aih'xing meansjhown in the present instance ieces or webs. vThe operativeV as comprising two, pairs of spacedfsegmen'ts 9, each segment having a curvedbuter face adapted. to make-contact with the curved face of the rotary drum, and 'thus serve to press the stay-tabs carried by the segments upon and ailix them to the face of the coverving blank carried by the rotary drum. The stay-tab carrying segments 9 are adjust-ably `mounted upon disks 10 carried by, a' shaft v12 mounte transversely of the machine and parallel with theshaft 6, In the present instance we have shown the machine as provided with two-of the said disks 10 mounted on the' same shaft, the disks being adjustable 'longitudinall of the shaft, the disks being provided wit collars and set screws for this purose, as more clearly shown Vin Fig. 5. As fore stated each of the disks 10 carries a4 pair of the stay-tab carrying segments 9,

-one located in. advance of the other, these ents being 4each provided o n one face )Vith-a laterally projecting rib 9a thattakes the face of the'disk, as more clearly shown with spaced openings 1 4around' the circum- `ference thereof toreceive fastening bolts 13 1n order to A permit circumferential adjust- Fig. 14,'tl1e disks being vfurther provided A Aintoa circumferential groove loiormednin ment of=.theseg111`ents 9 toward and from each other, whereby tozadjust the machine to operate -u on blanks; 'of different sizes, it bemgs'un. erstood that these box covering blan pon the face of which aref t0, be aixed, vary in size depending .upon the size of the box to be covered, and it being also understood that the stay-tabsmust blanks in order that the tabs will Aproperly cover the corner-joints of the box when the blank is applied thereto.l i

One type of blank with the staytabs properly applied thereto according to this invention, is, illustrated in Fig. 11 of the- "drawings, wherein the'4 reference letter A designatesthe blank and B thevcorner staytubs applied thereto. By adjustably'mounting the disks 10 upon the shaft 1Q and adthe stay-tabs .be accurately positioned upon the face of the justably supporting or connecting the staytab carrying segments upon said disks, it will be apparent that these parts of the machine may be easily and quickly adjusted to operate upon the blanks of 'different size.

The shaft 12'carries at one end a gear Wheel 15 which meshes with the gear 7 carried by lthe blank supporting drum shaft 6, so that the said drum 5 and the stay-tab, carrying and aitixllng means vwill operate in unison, these two mechanisms rotating in opposite l directions. Each of the blank-carrying and allixing segments 9 carries at its forward end a. gripper -finger v16, each pair of ingers being mounted` upon a-rock'shaft 17, see Figs. 4, 5, and 8, the said rock shafts bein n normally urged in a direction to hold the gers closed by means of coiled springsI brought to`a position opposite the feeding 18. 'Ilhe rock-shafts are journaled in their respective segments 9'a'ndalso in an adjustably mounted block 10 carried by a disk v10d mounted on shaft 12, the said disk 10 being similar in construction vto the disks 10, just described, uand 'each shaft has on .its

outer end a crank arm 19, said crank arms being arranged in the path of an adj ustably fixed cam '20 carried by the' machine frame, as' more` clearly shown in Figs. 15 and 16, the said cams being so arranged that during the rotary movement of the segments the'A gripper lingers will successively .open and close, first to receive the end of a strip of stay-tab material whenever a segmit 1s means for said stay-tab material, and second, to release the vstay-tabsv when'the latter have been properly atlixed to the face of the blank, as will hereinafter incre clearly appear',y this :operation of the fingersbeing broughtlabout by engagement ofthe crank 'arms' 17with the cams 20. 'The'cams have a curved slot;` '20, therethrough through which fastening Screw 20b passes,whereby said ca'msfmay 'adjnstiedand then locked against movement.l I jl y fst'aytabs in the instance shown are successively' cutffrom strips of suitable staytabf'm'aterial rolled'upon spools or reels one face 'of each strip'havin' an adhesive coat ing which is moistened y moistening rollers-after;the'v 'tabs ha`ve.beencut,'and while theyrare ontheir'way or moving toward the blank jsupprt, Suitable means being pro-' ,videdffor successively`l feeding the strips in stay-tab lengths and thens'evering the strips to. forni' tabs, "the, feedinga'nd severing means" beingfautomatically .operated at proper intervalsl and in regular sequence with`the"inovtuents the' carrying and af- `fixipg devi s;:sotliat'proper'tablengths of thesaidr's't-ripf materialjw'ill be fed forward andseveredwhenever'a pair of 4the tab carrying and `devices is brought in cooperative relation' to" the stay.- tab feeding means.;` 'l

'As more .clearly shown in Figs. 1, 3, G, 7 ,andf 8,- a :strip-"of 'stay-tab material is shown in'the form'of a reel or roll .2l/(one endv ofwliihfpasse's vover a guide rod or lroller22, through 'al guide Q3 andbetween a pair of ,feedf rollers 24, mounted in -a suitablev `frame 25, .as more 'clearly ,shown .in

Figi '7, lonet of 'the rollers being urged toward 'the'other by means of springsl 2o, and

.the said rollers being provided witlvinternesting gears 27.l Y Itwill of'l course be understood that the present machine euiplo l two reels'of stay-strip material, 'two sets off feed rolls, two strip ,severing 'devices and two moistening rollsfand the Vfo'llowii'ig de- T scription of these" mechanisms should'be considered with ,this in mind.` v' The tshaft on which one of the :feed Vrolls oteach pair is ments 9 so that 'whenevervon'e of th'es mounted' is provided with a gear j2S with which another gear 99 meshes, the said gear 99 and through it the feed rolls 24, being intermittently operated to successively feed stay-tab lengths b v means ot' thev ttioth'ed 70- segments 30 adjustably mounted upon :i disk 31 carried by the shaft 12, on which the" stay-Lab 'carrying and ailixing segmentsfare' mounted. The said toothed segments lti'arc' made adjustable circumterentiall)y aroundfthe disk 31 in order thatthese parts-nitty, :pf be adjusted as desired to properly feed stay-tab lengths suited to different-sized blanks. i' Arranged above and coperativelyA asso-v B0 ciated with each. pair ot'h feed rolls t ifs movable strip cuttingr bllide that coperates with-a fixed blade ,33, the said strip being'fed by the rollers between the'sevenlwith the feed movement of the' s tripifeedf rolls 2t, 'and also with the grippers llfea'ri ried by the blank carrying and atlixing se 10o 1" :qu Segments 9 appears opposite the stripJteedv M ing and severing'means the free end of the stay-,strip material 'will be fed to thefgii' per 'and gripped, and the severingdevice,

will then be actuated to sever a stayt'ali 105 length from .the 'strip' whihstay-tab will then be held in surface Contact with the curved face ofitsfsegment t) in'posititinto be aliived" to-tlieblank when -the adhcsiiely,

face of thjeiiblank. Arrangedabove and inthe path of'nioi f meut of each pair of tab carrying seguien is :rtank 41, which' may 'contain 'glue dit z tei'. and in whichrotates an applyil'ig'oi i i'noisteuing roller l2, theperipliery offs 'd rollers being arranged to make contact the outer fare of the slay labs as the tt t. iving' segments Si successively pass the s nie, \\hei 'eliy either to nioisieu I an already 1 20 gliuu'ned tab or to appl)v au adhesive c onlf ing to the face of an unguinlned tal'if'Vd prefer to mount. the tauksdll forwardly'and laterally adjustable. .so that the rollers- '412 niay be properly adjusted to make eontict with the stay-tabs' as they are moved past the s'auie'during-the`oper`ationof the maf chine hatererthe adjrstinent ot' the segments may be,'andto this end'the talnksff'fll are supported upon a base piece L12* extend? 13 0 .vclined frame-43 pivoted at its upper end as v plate 46 formlng 'a part ofthe machine blanks abuts during reciprocation of the ment havingl movement imparted thereto by l and the upper end of the reciprocating sup- `so separating-and feeding means for :internatically delivering `theblanks to the blank sup'- livered to said drum, andv while' we have held in 4posit-ion byfmeans,such as .a bolt and clined frame -is hinged in order that itmay of the-machine'.- This yinclined frame 43 is v per end a shelf v that supports the upper ward nivenientthereof which is imparted ing transversely of the machine frame and adjustably held bymeans of thumb-screws or other suitable means passing through a slot in said base' piece as more clearly shown in Figs. 1 and 2. Wehave shown the machine as provided with an automatic blank portingand carrying drum, the blanks being taken successively from a pack and deat 44, andhaving a'transversej plate 45 at its lower end, which rests upon a similar frame, the said inclined frame 43v beingwing-nut, as shown at. 47,. Fig. 2.' The in be liftedtogain access to the interior parts provided fwith 'longitudinal ways 48 in which is mounted for reciprocation a sup port 49 for a pack of blanks to be tabbed, the -said support `having a stop 50 at its lower Vend constituting an abutment forthe blank pack, and the :trame 43 at its upper end is provided with an' abutment. block'l against the end wall of which the pack of support 49 whereby to keep the edges of the pack of blanks in alinement The' blank support 49 is reciprocated by means of a segment 52 meshing with' a rack 53 secured to the bottom -ofthe support 49, the segl means of a link 54 connected eccentrically to a disk mounted on the shaft 6 of the blank supporting and carrying drum 5, all as more clearly shown in Fig. Q.

Theiinclined frame 43 carries at its upend ,ofthe pack of blanks during the uptofthe -paek as the support 49 reciprocates, and between the lower edge of the "shelf 55 port 49 there is located a suction roll 56 having openings 57 through vthe peri hei-y thereof, the said rollbeing so locatedp tluit when the upper end of the pack of blanks rests upon this roll the latter will ,operate by suction to Adraw away and hold in contactthere ith the yupper end of the lower-l inost blan of the pack when the blank sup-- port with the pack thereon is in its lowermost position of movement, thesuction roll 56 being then rotated to draw the adhering i blankaway from the packtoward suitable feed rollers presently to be described. The. l

suction roll 56 carries at one rack end' a gear' wheel 58, with which a rack 59 meshes, said being carried by the reciprocating. blank support 49 and operating'to impart backward and forward rotary movements to the suction roll to successively take ofi-and i delivpr the blanks from the pack. The suc-1 80 i a .pipe 60, see Fig.- l, with a pump cylindern tion roll is in communication, by means bf' or other suitable suction creating devicel in which reciproeates a piston 62, the latter connection with'a gear 64,

4 on'thepower shaft 3. The pistonis so timed in its .operation that av suction 'pull` will be created in the suction roll 56 when# Y ever the suction openings-57 in said' roll ,being operated by means of a piston-rod 634 A having a crank s "-thelatter being driven by means ofthe gear lieo posite orface the pack of blanks,

'and t e suction will be broken as soon 'as the y i I suction roll is rotated to bring its adhering blank in. proximity to the feeding Irolls', at.'-

which moment the suction is broken 'to free blank, after which the suction roll' returns to position to receive another'blank.

Also journaled in the'frame 43 is a feed roll` 65 upon which rests a plurality of I 100.

presser.rolls 66, said rolls beingfmounted on arms 67 carried by a cross shaft 68, the saidf arms being normally urgeddownward by means of springs 69 in ordr that the rolls 66 may be held in yieldingcontact. with the feed roll 65. Between the presser.

rolls 66 are deflector lingers 70 each'pivoted at 7l, said fingers extending slightlybeyond the feed roll 65` and terminatingat a point.

los

to form a substantial continuation of a bev- .eled wall-72 formed at the lower end of the shelf 55, the said fingers 70 serving to accuratelyguide the blankstoward the blankcarrying and supporting drum 5 and -in position to begripped by the gripper fingers 8--carried bysaid drum. The feed roller 65 is. mounted on a shaft 73which carries arfgear 7 4 meshing with a similarfgear 75 that is in turn in mesh with and d`riven-bya gear 7 'on the blank supporting and' carrying drum 5, these parts being so constructed 'and operating as to cause the blank feeding means to be operated by and in regular sequence with the Vmovements of the'blankv supporting and carrying drum. We have also shown the machine as provided with a receiving table for the tabbed blanks, 'and means or delivering the blanks from the blank supporting and carryinn drum onto \said table, and this means will now be described, reference being had more especially to Figs. 9, 10, and 11, wherein the vreference I .the 'means-described it will'be apparent thatl numeral 76 designates a blank receiving table, which is preferably. of cruci-itorm shape, orany other form conforming to the general outline of theA box covering blank. This table 76 is mounted upon avertically extendingrack' 77, and mechanism presently to .be described operates togradually lower l the table with a step-by-step movement as 1,0 the tabbed blanks are piled thereon. v

\ The .means for delivering the tabbed vblanks -on the table comprises a reciprocating carriage 78 that is carried by a pair of racks' 79 located parallel with the side meinbers vl of the machine frame, said racks being supported upon rollers 80. The car, riaofe is reciprocatedbackand forth toward and from` the blank supporting and carrying drum 5 by means of ,a gear Wheel 8l 2o mounted upon a shaft v82 extending trans versely of the` machine frame, said gear 8l being alternately rotated in opposite directions-byimeans of a reciprocating rack 83 jointed to acrank arm 84 mounted-on the shaft 6' of the vblanksupportingfand'carryilpg drum 5, all .as more clearly shown in -The carriage is provided with a so-called tumbler gripper. 85, the gripper finger 86 of which cooperates with'an edge S7of the carriage, mechanism being provided for throwing the linger 8G away from. the edge 87 to receive between said parts a blankto be gripped whenever the-carriageis moved to a position adjacent the drum 5,v and .mechanism being a'lso provided to cause the -ngeritofgripa blank Chen in tliisposition. This mechanism consists "i a stop 88, against which an arm 89 of the grippernger makes 40 Contact to cause `the tumbler of the'gripper mechanism .to loperate. swing the.; iinger' towardthe edge/871,01.: the cari'iageand in grippingycntact with the-l1` blank Whenever a blank is delivered thereto: A similar stopA 90 is provided at thefar end of the machine and arranged to engage the arm 89 of the gripper linger whenever' the carriage reaches the downward limitof its movement in order to release. the blank when the carriage l is in the position described, and permit the sameto fall i'tpon thejtable 76, all as -more clearly shown iii`Fig.-9.

A blank feeding? and supportingr roll 91. is arranged to bearugaiust the -under side ofthe blank supporting and carrying drum 5 in ordei" to support and feed the blank '.whilel it is beingr carried around by the said drum, and after it--has been released by the gripper .lingers S. .Forward olisaid roll 91 is ta.' pair of guidcplatos 92 and 93 between 5 which the blank i"e l,tli e lowernu-ist guide plate Sl'lQhaving its end adjacent the roll 91 i deflected downwardly tolinore readily receive the free ond of the blankas it. is fed forward during rotation of the drum 5. By

as the blank supporting and carrying drum 5 is-rotated to have the tabs aiiixed thereto,

'immediately the forward end of the blank carried by said drum passes the presser roll 91' the gripper fingers 8 will release the gripped end of the blank allowing the same tofall upon the forward end of the guide 93, continued rotary movement of the drum 5 vserving to feed the blank between the guides 92, 93, and in'position to be gripped by the I gripper finger 86 of the'blank delivery car' ringe. Then the blank has been gripped as just' described, the carriage will then be moved forward to bring the blank over the table 76, whereupon the stop. 90 will operate to open the gripper fingers, thus Areleasing the blank and allowing it to fall upon the table.

As it is desirableto stack the blanks up'on 85 the table 76 in an orderly manner with their edges in accuiate alinement, we have pro vided a .so-called jogging or alining mechanism associated with the table, said mechanism being arranged to operate upon 90 each blank as it is delivered to the table, and l ali-ne it with the previously delivered blanks, and this niechanisinconsists in-tlie instance shown olf-four upwardly extending arms '94, one'disposed between each cut-out angle fof' 95 the table 76', said arms each being'preferably pivoted at vto1a base plate 96, the latter having a longitudinal slot 97, whereby-:the arms 9i may be adjusted toward and from :the cut-out langular portions of the blank..

The said arms 94. are each mountedupona. pivoted lever '98, cach pair of levers being liniei'connected by a short. link 99," and two .of the levers being further connected by 1a" diagonally 'arranged connecting -link- P100.' 105.

One of the links'98 has a crankarm `101 connected by inea-ns of a reciprocating'link 102, which in turn is connected atfitslupper end. to 'a rocking crank 103 more clearly shown in Figs. l0 and Il, said' rocking cranki 1,10 103 havingr a rocking inovbnunt nnparted thereto at regular intervals. as for instant-e whenever a blank has been delivered to the receiving-table 7G, and this rocking movenient isiii'nparied to the arms 9+ iii such; 1,15 manner as lo cause. said arms` to simultaneously move inward toward eachl other or toward a common center, and --inmonlacl. with the-'edges of the 'blank immediat-ely after it has been deliveriulvto the' table,. 120 whereby to aline `said blank with llioseprc-A viouslydelivered, and thus stack the blanks in an orderly manner. l`he arms Dil are each provided with a lateh pin` til-l that takes into an opening in its pivot joint 95' in order to 125 lock the arms in a vertical position, the arms heilig thus pivol'ally mounted and the lati-,hes beingprovidod, in order that said arms may be unlalched and moved down parallel with iisl base plate 96 iii order to permit easy reivf ,e blank.` yA s. .the driim continues tofrotate, immediately it reaches a, lpositionwhere the forward' end comes opposite the guides92, 93, the gripper lingers 8 will release the end 5 of the blank, allowing the saine to rest upon .the lowerniost guide 93 and continued movement of the drum 5 will feed the blank ffor-ward between the guides until it reaches ,the edge 87 of the delivery carriage .78. m, At .this moment the gripper`lingers 8f3-'will .glip .the blanknd the carria e 78 Will then [be moved outward by the meer anism hereto- ,fore described until it reaches the limit of ,if its' outward move'ment, whereupon the grip- A"l5-perfingers will release the blank and allow .faitetoall upon the table 76, or upon the .fblankpreviously deposited upon said table. At this moment the jogging or Aalining 1 ,giingersll will be brought into action to goicenter. the last deposited blank ,accurately @with relation to' the pack ot blanks already en the-table so that as the blanks are delivered t0 the table they will be stacked in ,man orderly manner with their edges p rop- "gweijly alined. Asthe blanks are delivered to f the-tablethe latter will be gradually lowered with a step-by-'step movement by means .i1- of thetable lowering, mechanism described, and when .the table reaches its lowermost pommsition;thetableilowering mechanism w-ill be.

tlrrqwngoutof operation'by means ofthe ,gilower .end ofthe ra ck 77 engagingvthe bellcrank, lever 120, `which engagement will s., bptjiiiseaseparation of the laterally 'shitta'ble .,5:l i it c li element -1 07v.fromV its cooperating clutchV element, landallow 4the worin 'wheel .f 09pto-eruii'lifree during any further operationeoffthe machine. Q

. l/V,c .h'aiie shown .and described herona 46 erred-'enibodiment of ouijinvention. but

` ...gweflofnot wish to be understood' as limiting ourselves to .the precise construction and ar 'ij'aijlgeuient tof parts defined, except as we nay beliinited by the terms of the append- '452 claims. .l

Obviously we may omit entirely theautofipatic feeding 4means iii-.substitute for thc l.ctcil-ii-ig nieaiis shoivii any other suitable ilforin of automatic feed. Obviously, also, 50 I luayeliminate entirely .the receivingr ...fiable and the. delivery means associated therewitln or we may substitute for such s amans any other preferred forni of mecha- 222.1 'a blank and yseparate.laterally spaced means vc operativcly v issociated with the first named iiieans for applying a pluralityof stay-tabs' ...tofthc face of the blank.ivliile on said supgport.. :1132. In a machine et the character described .65 yand in combination, a traveling support for nal ly spaced stayaeg nisui `,for 4accoiiiplishing the work performed;

ral means cooperating therewith for successively aiiixing a. plurality of laterally spaced stay-tabs to -the face'of the blank while being adifanced by said support.

3, In a machine of the character described. and in combination, a rotary support for'a `blank and laterally spaced means coperating therewith for alixing. a pluralityof stay-tabs to' the .face of a blank carried by 75 said support. "4. In a machine of the character described and in combination a rotary support for a blank and' laterally spacedrotary means cooperating therewith forV successively aitixing a plurality of laterally and longitudi` abs to the face of a blank while on said support.

5. In a machine of the character described and in combination, a support for' a blank 85 and laterally spaced rotary means coperatively associated therewith for successively aiixing a plurality oi lateral space'distaytabs to the face of the blank while on `said support. l A' y6. vIn a machine of the characterdescribed. and in combinationl` lmeans for'supporting a blank, means for feeding a blank`t0.s aid support., and separate laterally spaced means cooperatively associated with the support for aixing a plurality of laterallyspaeed stay-tabs to the faceof a blank while gnsa-id support".- 3 I 7 In -a machine of the character described and in combination, a rotary' su port; for 'jog advancing a blank, means" for ibeding a blank to said support, an'dfseparate 'later'- ally spaced lmeans cooperatively associated with the support for successively aiiixing 4a plurality of .stay-tabs to the face of a Ablank carried by said support.

8. In a machine ofthe character described, and iii combination1 a rotary support for a blank, means for feedimg a'blank to said support, and separate laterally spaced ro- '-110 tary Imeans coperatively associated with the support for successively atlixing a pluralityif stay-tabs to' the face of a blank carried by said support;-

9.. In a machine ot the clniracter described l@L15 'and in combination, means for carryingfa blank, means for rsupporting -a' pack of blanks, blank feeding means for successively delivering blanksfiom the pack to the blank carrier, and separate laterally spaced means '1'20 cepcratively associated with the said blank carrier for successively aiiixing a plurality of stay-tabs to the face of a blank whilefon said carrier.

10. In4 a machine ofthe character de- 125 Ascribed and in combination. a traveling'support jt'or a blank, means for supporting a. pack of blanks, means for successively delivering blanks from the pack tov-said support, and separate laterally spaced'ineans' 130 rainyv coperatively associated with said travel- 'ing support for successively alhxing a 'plu- While on id support.

\11.In' a machine of the character de' ,scribed and in combination, means for supporting a blankpsseparate laterally spaced meanV cooperatively associated with said su'pp'o ting means for successively applyin ".a'pluralityof stay-tabs tothe face of a blan ile on said'support, and-separate-mcans for -feeding stay-tab material to each of the said tab applyin means.

' the traveling movement thereof.l

14, In a machine of lthe character vdescribed and in combination, a rotary su port for a blank, yand separate lateral y spaced rotary means coperativel associated therewith for successively a Xing a plurality of stay-tabs to the 'face of a blank 'movement'th'ereo l5. In a machine ofV 'the-character ldescribed andfin\combination, a rotary sup- .port for-a blankseparate laterally spaced -rotary means-forssuccessi'vely axing a 'plurality of staytabs to the faceof aj blank carried-by said support during the-.rotary movement thereof, and separate: means for while on said supportV and during the rotary feeding stay-tab material to eacliof the said rotary aflixing means.

16. In a machineof -the character `de-4 scribed and in combination, a, rotary support l. for a blank, and opposed laterally spaced rotary means for carryin and 4successively afixing a plurality of stay-tabs to thexface 'i of a blank'carriedby said' su port during the movement thereof, said -b ankl support and aiiixing means having rotary contacting faces.

17. `In a machine of the elia-racter'described and in combination, a ,traveling sup,- port for it blank, laterally spaced means cooperatively associated 'therewithfor suc' cessively aiiixing a plurality of stay-tabs to the face of a blank while on said su portl and means for delivering the .tabbed b anks.

18. In a. machinemgf the character described and iii-combination, a. rotary support for a blank, separate laterally spaced means. cooperatively associated therewith for successively aiixing a plurality of stay- 131 Staytabs to the 'face of a blank spaced rotar tabs to the faceof a blank while on said support and during the rotary movement thereof, a receiving table, and means 'for delivering tabbed blanks from-said support to said receiving" table. 19. In a machine of the character described and in combination, .a rotary support for a blank to be tabbed, laterally spaced rotary means cooperatively associated withvsaid support for successively aiiixing a plurality of sta tabs to the fa'ce of a blank carried by sail support, a receiving4 table for the' tabbed ,blau and means for delivering thel blanks from the said support to the receiving table. v

20. In a machine of the character described and-in. combination, rotar means' for supporting. and carryin? for supporting a pack of b separating the lo'wermostl blank of the pack and delivering thesame te the said rotary support, separate laterally spaced means ce'-l operatively associated with said rotary support for successively aixin a plurality of sta -tabs to.- the face of a. b ank during the movement of the said support, and means for feeding-stay-tab material to each of the said axing means.

21.,In a. machine= o f the `character' dcscribed and in combination, means for support-in a-blank to be provided with corner ay.ta s, laterallyl spaced means for simultaneously atlixing a pair of the ltabs to the face of a blank lcarried by said support,y a

supply reelfer the stay-tab material, and

means for feeding the stay-tab material to each ofthe said a'flixing means.

22. In: a machine of. the'eharaeter de scribed, and in combination, a rotary stipport Afor carrying ablank to receive corner.,

a blan ,means anks, means for stay tabs, and a plurality ofl laterally spaced rotary tabatixing devices cooperatively as- `sociated with said blank support and position'ed to aix a'plurality of stay-tabs to the .fa'ce of a 'blank while on said support, each of said rotar 'atiixing devices including a :gripper for t e stay-tab.

23.' In a machine of the character describedand in combination, a rotary support for a blank to' receive corner sta 7tabs, Aa plurality of'laterally and longitu inally tab aiiixing devices coperatively associated with said blank support ,and adapted to successively aix pairs of slay-tabs to tl'ie..face of the blankwliile on said support, and a. tab moistening device Acoperatively associated with each' of the said tabT atiixing devices to meisten the tab duringits movement toward the port.

24. In a machine for aiixing comer staying tabs to the face of a covering blank and in combination, a rotary .drum for supporting and carrying a blank, rotary tab blank sup- Acarrying and aixing devices cooperatively 'iti i and aliixing devices J ing rotation, to'pr'ess and affix staytabs to of a blank carried' by the drum,

other, whereby the machine may -.operate upon blanks ot' different sizes.

In a. machine for altixinf.,r corner staying tabs to the 'faceof a covering blank and in combination, a rotary drum for supporting and carrying a blanl, two pairs of rotary tab carrying andvaiixing devices cooperatively associated with said drum and adapted, during rotation, to successively press and ailix tabs to the face of a blank carried by the drinn, and means for adjusting said tab carryingv and atlixing de- .vices toward and from each other, whereby thc machine may operate upon blanks of different sizes.

26. In a machine for aiiiiting corner-staying tabs to the face of a coverinnfblank and in combination, a rotary drum ihr supporting and earrying'a blank, rotary tab carrying and aliixing devices coperatively associated with said drum and adapted during rotation to pressand afli'x tabs to the face of a blank carried by the drum, a gripper as.

sociated with each ot Vsaid devices for retaining the tabs thereon during the movement of the devices toward the drum, and means for adjusting said tab carrying and atlixing devicestoward and from each otlier,'whereby' tlieniachine may operate upon blanks of different sizes. i A. f

27. In a machine for allixing corner stay?,

ing tabs to the face of a covering blank and in combination, a rotary drum xfor'supp'orting and carryin ablank, laterally-spaced rotary tab barrying and aiiixingdevices cooperatively assoeiz1tetl,ivith said drum and adapted, during rotation, to successively press and aiiix a plurality of tabs to the face of ablank While on the`drum,`means for successively feeding,r tab strip material to said devices and means for severing the strip in tab` lengths.

. by each of said devices,

28. In a machine for atiixing corner staying tabs to the face of a covering blank and in combination, a rotary'druin for supporting and carrying a blank, laterallyv spaced rotary tab carrying and aitixing devices cooperatively associated Witli said drum and adapted, during rotation, .to successively press and aflix a plurality-of laterally and longitudinally spaced tabs to the `ace'oit a blank carried by the drum, a gripper carried means for feeding said tab material to said devices vto be gripped by the' grippers, means for severing the saidV stay-tab material, and means for inoisteninp,r the outer face of 'the stay-tabs during their movement-tou'ard the drinn.

29. In a machine for allixingcorner stayiner tabs toV the face of a covering blank' and in combination, a IOHY drum for Support ing and carrying a blank rotarv tab. carryingr and atii operatively associated with adapted) during rotation and atlix a; plurality of tabs to the face of a blank carried by the drinn, a receiving table fo1' the tabbed blanks, and means for succcssively 30.111 a machine for affix ing tabsto the face ofa covering blank and in combination, a rotary drum for supporting and carrying the blank, tivo l laterally spaced rotary tab carrying and aftixingdeviees coperatively associated Wit-h said drum and adapted d successively press and aiiix Xing devices cosaid drum and to successively press receiving table for the tabbed bl, n for delivering blanks from the diuiinstrdusiild table, and means for lowering the table as thelblnks are llelivered thereto.

r n a mac ine for aiiixin .cor ing tabs .to the face of a coverig bllailikstaarid in combination, means for supporting and carrying a blank, laterally spaced coperating means for successively atlixing two pairs otstay-talbs to the face of a'blarik while on said. supporting and carrying means, a receiving. table for the tabbed blanksjmeans for delivering theblanks to said receiving table,v and automatic means for alinin the blanks as they are delivered to the tab e,

32. In a machine-for aiixingv corner staying tabs-to the face of a covering blank and incombiiiation, a rotary drum for support- .they are delivered to vthespaced rotary tab carrying and aiixing devices cooperatively associated with said druin and adapted, d iiring rotation, to successively press and ai'ix a plurality of laterally spaced tabs to the face of a blank earried the drum, a receiving table for the tabbed blanks, means for successively delivering the tabbed blanks from the drum to the table, and means. associated with the table for alining the blanks as they are delivered thereto. v

33. .In a machine for aiixing corner staying tabsto the tace of a covering blank and in combination, a rotary drum for support.- ing andcarrying. a blank, separate laterally spaced rotary tab carrying and aiiixing devices coperatively" associated with said drum and adapted during'rotation to successively press and aix pairs of tabs to the face of a'blank carried .by the drain, 'a receiviirgr table for the tabbed blanks, means for delivering the blanks from the drum to the table, a plurality Ao.reciprocating arms adapted to engage and alinetheblanks as for actuating said arms.

, laterally spaced delivering the blanks to said table.

table, -and means 3st. In a machine for axing corner staying tabs to the face of a covering blank" and in combination, a rotary drum for supporting and carrying a blank, laterally lspaced rotary'tab carrying and ailixing devices co- @sensitively"associated with said drum and adaptedfduring rotation, to 'successively press and atx a plurality of tabs to the face of a blank carried by the drum, a receiving table for the tabbed blanks, a reciprocating carriage movable toward and from thedrum for delivering the tabbed blanks to the table,

and automatic means for rec'iprocatingr said carriage.

35. In a machine for a'fHXing corner staying 'tabs to the face of a covering blank and in combination, a rotary drum for supportand carrying a blank, two pairs of latera-lly spaced rotary tab carrying and ailixriage for retaining' the blanks thereon durlng its movement from the drum toward the table. Y d

36'. In-a machine for atlixing corner staying 4tabs to theface. of a covering blank, and in combination, means for supporting` and carrying` a blank, laterally spaced means for successively applying a plurality of staytabs to a face ofthe blank While on said supporting and carrying means, a receiving table for the tabbed blanks, means for delivering lthe blanks to said table, and automatic means for lowering the table with a step-by-step movement as the blanks are delivered thereto. Y

37. In avmachine for atlixing'corner staying tabs to the face of a covering blank and in combination, a rotary drum for supporting and carrying a blank, laterally spaced rotary tab carrying and atxing devices cooperatively associated With'- saidr-drum and adapted, during rotation, to successively press and aflix a plurality of tabs to the face of a blank carried by the drum, a receiving table, means for delivering the tabbed blanksl to said table, automatic means for gradually lowering the table as the blanks are fed thereto, and means for throwing the said automatic lowering means out of operation.

38. In a machinefor atliXi-ng corner staying tabs to the face of a covering blank, and in combination, a rotary drum for supports ing and carrying a blank, automatic means for successively feeding blanks tosaid drum, a plurality of laterally spaced rotary tab carrying and afiixing devices coperatively associated with said drum and adapted during rotation, to successively press and aflix a plurality of tabs to the face of a blank carassociated with said drum and adapted, during rotation, to successively pressand afix a plurality of tabsto the face of a blank carried by the drum, and means for feedinor strips of stay-tab material to the said tab carrying and aliixing devices.

40. In a machine for atixing corner staysoA ing tabs to the face of a covering blank and in combination, a rotary drum for/supporting and carrying a blank, an'inclined support for a pack of blanks to be tabbed, means for reciprocating said pack support, coperating means'- for successively 'taking the lower-most blank from the pack and delivering it to the blank-supporting and carrying means, Vlaterally spaced rotary tab carrying and altixing devices copcrativ'elyj associated with the said blank supporting and carrying means for successively atlxing a plurality of tabs to the face of the blank; and means for delivering the tabbed blanks.'95

41. In a machine for aiiixin'g corner staying tabs to the face of a covering blank vand in combination, a rotary drum for supporting and carrying a blank, a -pailr of rotary disks arranged adjacent said drum, means` for adjustingsaid disks toward and from each other, and tab carrying segments justably mounted upon' each disk.

42. In a machine for aflixing corner stay.- ingtabs to the face of a covering blank and in combination, a rotarydrum for supporting and carrying a. blank, a pair of rotatable disks mounted for rotation adjacent said drum, a pair of tab carrying segments adjustably mounted on each disk, and means for adjustably supporting said segments.

4.3. In a machine for atlixing corner staying tabs to the face .of a covering blank and in combination, a rotary drum -for supporting and carrying 'a blank, a pair of'disks arranged parallel to each other and mounted for rotation adjacent said drum, means forA adjusting said disks toward and from each other, 'a tab carrying'segment carried 4by .cach disk, and means for adjusting said segments lcircumfercntially relative to the disks.

44.' In a machine for aliixing corner 'stayin'g tabs .to the face of a covering blank and in combination, a rotary drum for `supporting and carrying'a blank, a pair ofditsks' mounted for rotation adjacent said drum, a

pair of tab carrying segments mounted oneach disk, one in advance of the other,4

edi 

